How to avoid foam overflow in brew kettle
How to avoid foam overflow in brew kettle Based on traditional internal calandria, there might be some foam produced and overflowed during boiling. It would cause not only beer loss but also accident. This problem results from incorrect operation. After lautering, the wort temperature is usually 75-78℃. When the wort is pumped to brew kettle, the temperature is decreasing gradually. Therefore, let the steam go into calandria once the wort level exceeds internal calandria. The steam pressure at beginning had better be less than 0.05MPa to guarantee the wort temperature stays around 80℃. In this case, the enzyme remaining still works. With lautering and sparging going, we can increase the steam pressure as well. When the sparging is nearly finished, the steam pressure should be rise to 0.08-0.10MPa. Accordingly, the wort temperature is increased to around 90℃. Sometimes, the brewmaster would increase steam pressure to 0.15-0.20MPa incorrectly. If so, the wort would be boiled in ...